CN109233311A - A kind of preparation method of composite modified emulsification asphalt material and its application in porous pavement - Google Patents
A kind of preparation method of composite modified emulsification asphalt material and its application in porous pavement Download PDFInfo
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- CN109233311A CN109233311A CN201811063591.1A CN201811063591A CN109233311A CN 109233311 A CN109233311 A CN 109233311A CN 201811063591 A CN201811063591 A CN 201811063591A CN 109233311 A CN109233311 A CN 109233311A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of composite modified emulsification asphalt material preparation method and its applications in porous pavement, belong to pavement material technical field.By 50-59 parts of emulsified asphalt, 5-45 parts of emulsified asphalt modified additive, 1-4.5 parts of styrene-butadiene latex, 0.1-1 parts of dispersing agent mixing, 30min is stirred with the revolving speed of 300r/min, obtains a kind of composite modified emulsification asphalt material；Emulsified asphalt modified additive includes following components: 10-15 parts, 45-80 parts 5-10 parts of polyphosphoric acids, 15-30 parts of thermoplastic polyurethane elastomer, 10-20 parts of styrene-butadiene block copolymer, nonionic asphalt emulsifier deionized waters.Viscosity, softening point and the 15 DEG C of ductilities of modified emulsifying asphalt evaporated residue can be effectively improved, pitch intensity, wearability and low-temperature flexibility is promoted, prevents embrittlement.This composite modified emulsification asphalt is used to porous pavement to mat formation, has adhesive strength height, the strong feature of weatherability has industrial value.
Description
Technical field
The present invention relates to pavement material technical field more particularly to it is a kind of applied to porous pavement mat formation in it is composite modified
Emulsified bituminous materials.
Background technique
Emulsified asphalt is by the road asphalt of applied at elevated temperature, and the method for taking chemistry is uniformly distributed in water, forms liquid
State can use at normal temperature, and good fluidity, construction technology is simple, nontoxic, nonflammable.But with the raising of environment temperature,
After emulsified asphalt solidification, occurs the problems such as caking property is low, intensity is inadequate, and low-temperature flexibility is poor at high temperature, therefore constrain emulsification
Promotion and application of the pitch in asphalt pavement conserving and maintenance.Modified emulsifying asphalt not only has the characteristic of emulsified asphalt, and
And the advantages of having both modified material.Polymer becomes ideal modified with its excellent performance and with the good compatibility of pitch
Agent.Compared to matrix emulsified asphalt, the Rut resistance of polymer modification emulsified asphalt, high-temperature behavior, road surface fatigue resistance, antiscour
Property, increase with the adhesion of ore, short construction period has better economy and longer service life.It is every
Summer China city is just again and again by the attack of torrential rain, and rain calamity " grade " increases year by year, and 10 years one chances, fifty year return periods are very
The eyeball of people is constantly impacted to a-hundred-year report.The author is not desired to that the grade that rain calamity belongs to the chance of how many year one is discussed, but
After being heavy rain, serious seeping phenomenon occurs for each city, leads to that traffic jam, power breakdown, house is flooded is out of question
The fact.The main reason for expert points out, causes such case is that China's urban pavement is waterproof.
In urban construction, many cities largely use cement, pitch, concrete etc. to close earth's surface, replace original soil
Earth surface；To public places such as pavement, open parking ground, garden and squares, also like with neat beautiful stone slab or water
Mud azulejo is laid with.Closing earth's surface is while improving traffic and road conditions, beautifying the environment, also to urban ecology and climatic environment
Generate significant adverse effect: city becomes " artificial desert ", close earth's surface and high buildings and large mansions make the earth's surface of Metroplises by
Step hardens covering by material water-proof material, and moisture is difficult to lower infiltration, and precipitation is quickly become rainwash, into river or subdrainage
Pipeline forms " artificial desert " on ecology.Mating formation using hot-laid mixture for usual porous pavement, it is currently used to change
Property emulsified asphalt has SBS, SBR or both composite modified emulsification asphalt, is needed in construction working by mixed material heating to 170 DEG C
High temperature, expend a large amount of energy, it is at high cost, while high temperature generate glance coal be harmful to the human body.It follows that urban construction
It is simple to be badly in need of a kind of construction technology, nontoxic, nonflammable porous pavement is mated formation.
Summary of the invention
The purpose of the present invention is to provide a kind of composite modified emulsification asphalt material preparation method and its in porous pavement
Application, the method be in emulsified asphalt modified additive introduce thermoplastic polyurethane elastomer and styrene-butadiene it is embedding
Section copolymer, then it is composite modified to emulsified asphalt progress with styrene-butadiene latex, so that material evaporated residue softening point is high, viscosity
Greatly, high temperature bonding power is strong, and low temperature flexibility is good, and weather-proof UV resistance is excellent.This composite modified emulsification asphalt is used as permeable
Road surface cementitious matter is constructed under room temperature, and the energy is saved, simple and convenient, has industrial value.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.
A kind of composite modified emulsification asphalt material preparation method, which comprises the steps of:
By 50-59 parts of emulsified asphalt, 5-45 parts of emulsified asphalt modified additive, 1-4.5 parts of styrene-butadiene latex, dispersing agent 0.1-
1 part of mixing stirs 30min with the revolving speed of 300r/min, obtains a kind of composite modified emulsification asphalt material；The emulsification drip
Green modified additive includes following components:
5-10 parts of polyphosphoric acids, 15-30 parts of thermoplastic polyurethane elastomer, styrene-butadiene block copolymer 10-20
10-15 parts, 45-80 parts part, nonionic asphalt emulsifier deionized waters.
Preferably, the hard section of the thermoplastic polyurethane elastomer is aromatic isocyanate, in aliphatic isocyanates
One kind, the soft segment of the thermoplastic polyurethane elastomer is polyester polyol, polyether polyol, in acryl polyol
It is one or more kinds of.
Preferably, the aromatic isocyanate is preferably toluene di-isocyanate(TDI), in methyl diphenylene diisocyanate
One kind；Aliphatic isocyanates are preferably hexamethylene diisocyanate, isophorone diisocyanate.
Preferably, the quality of the polyphosphoric acids, thermoplastic polyurethane elastomer and styrene-butadiene block copolymer
Than for 1:(2-4): (1-3).
Preferably, the relative molecular mass of the styrene-butadiene block copolymer is 10-20 ten thousand.
Preferably, the nonionic emulsifier is alkyl phenol polyoxyethylene ether, one in high-carbon fatty alcohol polyoxyethylene ether
Kind.
Preferably, the alkyl phenol polyoxyethylene ether is preferably octyl phenol polyoxyethylene ether, in nonylphenol polyoxyethylene ether
One kind.
Preferably, the dispersing agent is lignosulfonates.
Preferably, the styrene-butadiene latex solid content is 40%-60%.
Preferably, the emulsified asphalt solid content is 50%-65%.
Preferably, the preparation method of the emulsified asphalt modified additive comprises the steps of:
Step 1 weighs each component by the weight percentage；
The weighed polyphosphoric acids of step 1 is heated to 100-110 DEG C and kept the temperature by step 2；
The thermoplastic polyurethane elastomer is heated to 55-65 DEG C and kept the temperature by step 3, by the styrene-butadiene
Block copolymer is heated to 55-65 DEG C and keeps the temperature；
Styrene-Butadiene block described in thermoplastic polyurethane elastomer described in step 3 and the step is total to by step 4
Polymers is added to jointly in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C, and keep the temperature 2.5h and obtain poly phosphorus
The mixture of acid, thermoplastic polyurethane elastomer and styrene-butadiene block copolymer；
Step 5 is down to room temperature to the mixture of step 4, and nonionic asphalt emulsifier is added into the mixture of step 4,
20min is stirred with 800r/min revolving speed, in the state of lasting stirring, deionized water is added, continues stirring and extremely forms uniformly cream
Liquid obtains a kind of emulsified bitumen modifying agent.
A kind of application of composite modified emulsification asphalt material, by composite modified emulsification asphalt and basalt building stones and water-reducing agent
It mixes and stirs for being laid with porous pavement；The each component mass ratio is modified emulsifying asphalt: the basalt building stones: water-reducing agent=
100:(9-15): (0.01-0.02).
By adopting the above technical scheme, can be realized following technology the utility model has the advantages that
In composite modified emulsification asphalt of the present invention, thermoplastic polyurethane elastomer hardness and range of flexibility are very
Extensively, introduce thermoplastic polyurethane elastomer and styrene-butadiene block copolymer in emulsified bitumen modifying agent, then with butadiene-styrene rubber
Cream compounding is modified emulsified asphalt, can effectively promote Asphalt Emulsion Evaporation Residue viscosity and needle penetration, reduces emulsification
Pitch promotes height temperature stability and the adhesive property with building stones to the sensibility of temperature.Styrene-is used compared to simple
Butadiene block copolymer modifying agent, thermoplastic polyurethane elastomer is introduced in modifying agent can effectively enhance emulsified asphalt
It is resistance to bend disturb, be wear-resisting, is weather-proof, chemicals-resistant and resilience performance, what styrene-butadiene latex was added is used cooperatively, and the low temperature of material can be improved
Flexibility.Conventional porous pavement, which mats formation to need to be heated at high temperature, to be mixed and stirred, and mass energy, while the glance coal harm that high temperature generates is lost
Human body.This composite modified emulsification asphalt is applied to during porous pavement mats formation, is constructed under room temperature, simple and convenient, smokeless,
To construction personnel close friend, energy saving and cost, while water-reducing agent being added in mixture, reduces the dosage of water, it can be effective
Promote the residual stability of mixture.
Specific embodiment
Further to illustrate the present invention to reach the technical means and efficacy that predetermined goal of the invention is taken, to according to this
Detailed description is as follows for a kind of composite modified emulsification asphalt material preparation that invention proposes and its application in porous pavement.
The invention discloses a kind of composite modified emulsification asphalt material preparation methods, which comprises the steps of:
By 50-59 parts of emulsified asphalt, 5-45 parts of emulsified asphalt modified additive, 1-4.5 parts of styrene-butadiene latex, dispersing agent 0.1-
1 part of mixing stirs 30min with the revolving speed of 300r/min, obtains a kind of composite modified emulsification asphalt material；The emulsification drip
Green modified additive includes following components:
5-10 parts of polyphosphoric acids, 15-30 parts of thermoplastic polyurethane elastomer, styrene-butadiene block copolymer 10-20
10-15 parts, 45-80 parts part, nonionic asphalt emulsifier deionized waters.
As a preferred embodiment, the hard section of thermoplastic polyurethane elastomer is aromatic isocyanate, aliphatic isocyanide
One of acid esters, the soft segment of the thermoplastic polyurethane elastomer are that polyester polyol, polyether polyol, acrylate are polynary
One of alcohol or more than one.
As a preferred embodiment, aromatic isocyanate is preferably toluene di-isocyanate(TDI), two isocyanide of diphenyl methane
One of acid esters；Aliphatic isocyanates are preferably hexamethylene diisocyanate, isophorone diisocyanate.
As a preferred embodiment, polyphosphoric acids, thermoplastic polyurethane elastomer and styrene-butadiene block copolymer
Mass ratio be 1:(2-4): (1-3).
As a preferred embodiment, the relative molecular mass of styrene-butadiene block copolymer is 10-20 ten thousand.
As a preferred embodiment, nonionic emulsifier is alkyl phenol polyoxyethylene ether, high-carbon fatty alcohol polyoxyethylene ether
One of.
As a preferred embodiment, alkyl phenol polyoxyethylene ether is preferably octyl phenol polyoxyethylene ether, polyoxyethylene nonyl phenyl second
One of alkene ether.
As a preferred embodiment, dispersing agent is lignosulfonates.
As a preferred embodiment, styrene-butadiene latex solid content is 40%-60%.
As a preferred embodiment, emulsified asphalt solid content is 50%-65%.
As a preferred embodiment, the preparation method of emulsified asphalt modified additive comprises the steps of:
Step 1 weighs each component by the weight percentage；
The weighed polyphosphoric acids of step 1 is heated to 100-110 DEG C and kept the temperature by step 2；
The thermoplastic polyurethane elastomer is heated to 55-65 DEG C and kept the temperature by step 3, by the styrene-butadiene
Block copolymer is heated to 55-65 DEG C and keeps the temperature；
Styrene-Butadiene block described in thermoplastic polyurethane elastomer described in step 3 and the step is total to by step 4
Polymers is added to jointly in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C, and keep the temperature 2.5h and obtain poly phosphorus
The mixture of acid, thermoplastic polyurethane elastomer and styrene-butadiene block copolymer；
Step 5 is down to room temperature to the mixture of step 4, and nonionic asphalt emulsifier is added into the mixture of step 4,
20min is stirred with 800r/min revolving speed, in the state of lasting stirring, deionized water is added, continues stirring and extremely forms uniformly cream
Liquid obtains a kind of emulsified bitumen modifying agent.
A kind of composite modified emulsification asphalt material porous pavement application, by composite modified emulsification asphalt and basalt stone
Material and water-reducing agent are mixed and stirred for being laid with porous pavement；The each component mass ratio is modified emulsifying asphalt: the basalt building stones:
Water-reducing agent=100:(9-15): (0.01-0.02).
In order to further illustrate the present invention, kind of a composite modified emulsification asphalt is provided to the present invention combined with specific embodiments below
The preparation method of material and its porous pavement application be described in detail, but should not be construed as to the present invention protect
The restriction of range.
Embodiment 1
10 parts of polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
30 parts of thermoplastic polyethers-isophorone diisocyanate type elastomer is heated to 55-65 DEG C and kept the temperature by step 2,
15 parts of styrene-butadiene block copolymer is heated to 55-65 DEG C and is kept the temperature simultaneously；
Step 3, thermoplastic polyether-isophorone diisocyanate elastomer that step 2 is obtained and styrene-butadiene
Block copolymer is added in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature 2.5h and obtains thermoplastic poly
Ether-isophorone diisocyanate elastomer and styrene-butadiene block copolymer and polyphosphoric acids mixture；
Step 4 is cooled to room temperature to the mixture of step 3,12 parts of nonionic asphalt emulsifiers is added, then with 800r/min
Revolving speed stirs 20min and 70 parts of deionized waters is added under conditions of lasting stirring, continues continuous stirring until homogeneous latex emulsion is formed i.e.
Emulsified bitumen modifying agent 1 is made.
Step 5, by 70 part of 65% solid content emulsified asphalt, 130 parts of emulsified asphalt modified additives, 1,3.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 1.
Step 6, by 100 parts of basalt building stones, 9 parts of composite modified emulsification asphalts 1,0.01% water-reducing agent mix and stir be laid with it is permeable
Road surface.
Composite modified emulsification asphalt 1 evaporated residue viscosity 76000mPa.s, 86 DEG C of softening point, 15 DEG C of ductility 42cm, thoroughly
Water route face Marshall intensity 9.2KN (specification>3.5KN), disperse loss 12.3% (specification<15%), and freeze-thaw split is than 89% (rule
Model > 80%), residual stability 91% (specification > 80%).
Embodiment 2
10 polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
30 parts of thermoplastic polyesters-methyl diphenylene diisocyanate type elastomer is heated to 55-65 DEG C, and protected by step 2
Temperature；10 parts of styrene-butadiene block copolymers are separately heated to 55-65 DEG C and are kept the temperature；
Step 3, thermoplastic polyester-methyl diphenylene diisocyanate type elastomer of step 2 and styrene-butadiene are embedding
Section copolymer is added to simultaneously in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature 2.5h, obtains thermoplasticity
Polyester-methyl diphenylene diisocyanate type elastomer and styrene-butadiene block copolymer and polyphosphoric acids mixture；
Step 4 is cooled to room temperature 12 parts of nonionic asphalt emulsifiers is added to the mixture of step 3, then with 800r/min
Revolving speed stirs 20min, and 65 parts of deionized waters are added in the case where lasting stirring, is stirred continuously until that homogeneous latex emulsion is formed and makes
Obtain emulsified bitumen modifying agent 2；
Step 5, by 60 part of 65% solid content emulsified asphalt, 40 parts of emulsified asphalt modified additives, 2,2.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 2；
Step 6, by 100 parts of basalt building stones, 10 parts of composite modified emulsification asphalts 2, it is saturating that 0.02% water-reducing agent mixes and stirs laying
Water route face.
Composite modified emulsification asphalt 2 evaporated residue viscosity 84000mPa.s, 88 DEG C of softening point, 15 DEG C of ductility 42cm, thoroughly
Water route face Marshall intensity 10KN (specification>3.5KN), disperse loss 11% (specification<15%), freeze-thaw split than 90% (specification>
80%), residual stability 90% (specification > 80%).
Embodiment 3
10 parts of polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
20 parts of thermoplastic acrylic ester polyols-toluene di-isocyanate(TDI) type elastomer is heated to 55-65 DEG C by step 2
And it keeps the temperature；20 parts of styrene-butadiene block copolymers are heated to 55-65 DEG C and are kept the temperature；
Step 3, by thermoplasticity olefin(e) acid ester polyol-toluene di-isocyanate(TDI) type elastomer and benzene second obtained in step 2
Alkene-butadiene block copolymer is added to simultaneously in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature 2.5h,
Obtain thermoplasticity olefin(e) acid ester polyol-toluene di-isocyanate(TDI) type elastomer and styrene-butadiene block copolymer and poly
Phosphate mixture；
Step 4 is cooled to room temperature 12 parts of nonionic asphalt emulsifiers is added to the mixture of step 3, then with 800r/min
70 parts of deionized waters are added in the case where lasting stirring in revolving speed stirring 20min, continue stirring until homogeneous latex emulsion is formed i.e.
Emulsified bitumen modifying agent 3 is made；
Step 5, by 75 part of 65% solid content emulsified asphalt, 25 parts of emulsified asphalt modified additives, 3,3.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 3；
Step 6, by 100 parts of basalt building stones, 10 parts of composite modified emulsification asphalts 3, it is saturating that 0.01% water-reducing agent mixes and stirs laying
Water route face.
3 viscosity 79000mPa.s of composite modified emulsification asphalt, 85 DEG C of softening point, 15 DEG C of ductility 48cm, porous pavement horse has a rest
Your intensity 8.5KN (specification>3.5KN), disperse loss 12.6% (specification<15%), freeze-thaw split than 91% (standardizing>80%),
Residual stability 91% (specification > 80%).
Embodiment 4
10 parts of polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
25 parts of thermoplastic polyethers-hexamethylene diisocyanate elastomer is heated to 55-65 DEG C and kept the temperature by step 2；It will
15 parts of styrene-butadiene block copolymers are heated to 55-65 DEG C and keep the temperature；
Step 3, by thermoplastic polyether obtained in step 2-hexamethylene diisocyanate elastomer and styrene-fourth two
Alkene block copolymer is added to simultaneously in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature 2.5h, obtains heat
Plasticity polyethers-hexamethylene diisocyanate elastomer and styrene-butadiene block copolymer and polyphosphoric acids mixture；
Step 4 is cooled to room temperature 12 parts of nonionic asphalt emulsifiers of addition to the mixture in step 3, then with 800r/
Min revolving speed stirs 20min, and 70 parts of deionized waters are added in the case where lasting stirring, continues continuous stirring until homogeneous latex emulsion shape
At obtaining emulsified bitumen modifying agent 4；
Step 5, by 60 part of 65% solid content emulsified asphalt, 40 parts of emulsified asphalt modified additives, 4,3.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 4；
Step 6, by 100 parts of basalt building stones, 11 parts of composite modified emulsification asphalts 4, it is saturating that 0.05% water-reducing agent mixes and stirs laying
Water route face.
4 viscosity 89000mPa.s of composite modified emulsification asphalt, 88 DEG C of softening point, 15 DEG C of ductility 46cm, porous pavement horse has a rest
Your intensity 9.7KN (specification>3.5KN), disperse loss 10.9% (specification<15%), freeze-thaw split than 90% (standardizing>80%),
Residual stability 93% (specification > 80%).
Embodiment 5
10 parts of polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
15 parts of thermoplastic polyesters-isophorone diisocyanate elastomer is heated to 55-65 DEG C and kept the temperature by step 2, will
20 parts of styrene-butadiene block copolymers are heated to 55-65 DEG C and keep the temperature；
Step 3, thermoplastic polyester-isophorone diisocyanate elastomer that then step 2 obtains and styrene-fourth two
Alkene block copolymer is added to simultaneously in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature 2.5h, obtains heat
Plasticity polyester-isophorone diisocyanate elastomer and styrene-butadiene block copolymer and polyphosphoric acids mixture；
Step 4 is cooled to room temperature 12 parts of nonionic asphalt emulsifiers is added to the mixture of step 3, then with 800r/min
Revolving speed stirs 20min, and 75 parts of deionized waters are added under continuous agitation, continues stirring until homogeneous latex emulsion formation is made
Obtain emulsified bitumen modifying agent 5；
Step 5, by 70 part of 60% solid content emulsified asphalt, 30 parts of emulsified asphalt modified additives, 5,3.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 5；
Step 6, by 100 parts of basalt building stones, 9 parts of composite modified emulsification asphalts 5,0.01% water-reducing agent mix and stir be laid with it is permeable
Road surface.
5 viscosity 78000mPa.s of composite modified emulsification asphalt, 86 DEG C of softening point, 15 DEG C of ductility 41cm, porous pavement horse has a rest
Your intensity 9.4KN (specification>3.5KN), disperse loss 12.7% (specification<15%), freeze-thaw split than 87% (standardizing>80%),
Residual stability 89% (specification > 80%).
Embodiment 6
10 parts of polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
30 parts of thermoplastic polyethers-methyl diphenylene diisocyanate elastomer is heated to 55-65 DEG C and kept the temperature by step 2,
20 parts of styrene-butadiene block copolymers are heated to 55-65 DEG C and are kept the temperature；
Step 3, thermoplastic polyether-methyl diphenylene diisocyanate elastomer that step 2 is obtained and styrene-fourth two
Alkene block copolymer is added to simultaneously in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature 2.5h, obtains heat
The mixing of plasticity polyether-diphenyl methane diisocyanate elastomer and styrene-butadiene block copolymer agent polyphosphoric acids
Object；
Step 4 is cooled to room temperature 12 parts of nonionic asphalt emulsifiers is added to the mixture of step 3, then with 800r/min
Revolving speed stirs 20min, and 70 parts of deionized waters are added in the case where lasting stirring, continues stirring until homogeneous latex emulsion formation is made
Obtain emulsified bitumen modifying agent 6；
Step 5, by 70 part of 55% solid content emulsified asphalt, 30 parts of emulsified asphalt modified additives, 6,2.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 6；
Step 6, by 100 parts of basalt building stones, 9 parts of composite modified emulsification asphalts 6,0.01% water-reducing agent mix and stir be laid with it is permeable
Road surface.
6 viscosity 69000mPa.s of composite modified emulsification asphalt, 85 DEG C of softening point, 15 DEG C of ductility 47cm, porous pavement horse has a rest
Your intensity 8.3KN (specification>3.5KN), disperse loss 12.6% (specification<15%), freeze-thaw split than 87% (standardizing>80%),
Residual stability 88% (specification > 80%).
Embodiment 7
10 parts of polyphosphoric acids are heated to 100-110 DEG C and kept the temperature by step 1；
30 parts of thermoplastic acrylic ester polyol-hexamethylene diisocyanate elastomers are heated to 55-65 by step 2
DEG C and keep the temperature, 15 parts of styrene-butadiene block copolymers are heated to 55-65 DEG C and keep the temperature；
Step 3, thermoplastic acrylic ester polyol-hexamethylene diisocyanate elastomer that step 2 is obtained and benzene
Ethylene-butadiene block copolymer is added to simultaneously in the polyphosphoric acids of step 1 heat preservation, is warming up to 105-115 DEG C and is kept the temperature
2.5h obtains thermoplastic acrylic ester polyol-hexamethylene diisocyanate elastomer and Styrene-Butadiene block copolymerization
The mixture of object and polyphosphoric acids；
The mixture of step 3 is cooled to room temperature 12 parts of nonionic asphalt emulsifiers of addition by step 4, then with 800r/min
Revolving speed stirs 20min, and 70 parts of deionized waters are added in the case where lasting stirring, continues stirring until homogeneous latex emulsion formation is made
Obtain emulsified bitumen modifying agent 7；
Step 5, by 75 part of 60% solid content emulsified asphalt, 25 parts of emulsified asphalt modified additives, 7,3.5 parts of styrene-butadiene latexes
And 0.5 part of dispersing agent, 30min is stirred with the revolving speed of 300r/min, prepares composite modified emulsification asphalt 7；
Step 6, by 100 parts of basalt building stones, 10 parts of composite modified emulsification asphalts 7, it is saturating that 0.03% water-reducing agent mixes and stirs laying
Water route face.
7 viscosity 77000mPa.s of composite modified emulsification asphalt, 89 DEG C of softening point, 15 DEG C of ductility 44cm, porous pavement horse has a rest
Your intensity 9.6KN (specification>3.5KN), disperse loss 11.9% (specification<15%), freeze-thaw split than 90% (standardizing>80%),
Residual stability 90% (specification > 80%).
1 the performance test results of table
According to the performance test results of table 1 as it can be seen that the performance test results of the invention patent embodiment 1-7 meet mark
It is quasi-.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of composite modified emulsification asphalt material preparation method, which comprises the steps of:
By 50-59 parts of emulsified asphalt, 5-45 parts of emulsified asphalt modified additive, 1-4.5 parts of styrene-butadiene latex, 0.1-1 parts of dispersing agent
Mixing stirs 30min with the revolving speed of 300r/min, obtains a kind of composite modified emulsification asphalt material；The emulsified asphalt
Modified additive includes following components:
5-10 parts of polyphosphoric acids, 15-30 parts of thermoplastic polyurethane elastomer, 10-20 parts of styrene-butadiene block copolymer,
10-15 parts, 45-80 parts deionized waters of nonionic asphalt emulsifier.
2. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the thermoplastic
Property polyurethane elastomer hard section be one of aromatic isocyanate or aliphatic isocyanates, the thermoplastic polyurethane
The soft segment of elastomer be one of polyester polyol, polyether polyol or acryl polyol or more than one.
3. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the poly
The mass ratio of phosphoric acid, thermoplastic polyurethane elastomer and styrene-butadiene block copolymer is 1:(2-4): (1-3).
4. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the benzene second
Alkene-butadiene block copolymer relative molecular mass is 10-20 ten thousand.
5. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that it is described it is non-from
Sub- emulsifier is one of alkyl phenol polyoxyethylene ether or high-carbon fatty alcohol polyoxyethylene ether.
6. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the dispersion
Agent is lignosulfonates.
7. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the butylbenzene
Latex solid content is 40%-60%.
8. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the emulsification
Pitch solid content is 50%-65%.
9. a kind of composite modified emulsification asphalt material preparation method according to claim 1, which is characterized in that the emulsification
The preparation method of asphalt modification additive comprises the steps of:
Step 1, by weight percentage composition weigh each component；
The weighed polyphosphoric acids of step 1 is heated to 100-110 DEG C and kept the temperature by step 2；
The thermoplastic polyurethane elastomer is heated to 55-65 DEG C and kept the temperature by step 3, by the Styrene-Butadiene block
Copolymer is heated to 55-65 DEG C and keeps the temperature；
Step 4, by styrene-butadiene block copolymer described in thermoplastic polyurethane elastomer described in step 3 and the step
It is added in the polyphosphoric acids of step 1 heat preservation jointly, is warming up to 105-115 DEG C, and keep the temperature 2.5h and obtain polyphosphoric acids, heat
The mixture of plastic polyurethane elastomer and styrene-butadiene block copolymer；
Step 5 is down to room temperature to the mixture of step 4, and nonionic asphalt emulsifier is added into the mixture of step 4, with
800r/min revolving speed stirs 20min, and in the state of lasting stirring, deionized water is added, and continues stirring and extremely forms homogeneous latex emulsion,
Obtain a kind of emulsified asphalt modified additive.
10. a kind of application method of composite modified emulsification asphalt material, which is characterized in that by composite modified emulsification asphalt and the Black Warrior
Rock material and water-reducing agent are mixed and stirred for being laid with porous pavement；The each component mass ratio is modified emulsifying asphalt: the basalt
Building stones: water-reducing agent=100:(9-15): (0.01-0.02).
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| CN111286209A (en) * | 2020-03-31 | 2020-06-16 | 东南大学 | SBS high-viscosity modified emulsified asphalt material and preparation process thereof |
| CN111471398A (en) * | 2020-06-11 | 2020-07-31 | 陕西中融交通建设有限公司 | Cold-state construction color seal material and preparation method thereof |
| CN114292049A (en) * | 2021-11-22 | 2022-04-08 | 深圳海川新材料科技股份有限公司 | Low-carbon flexible permeable pavement material and preparation method thereof |
| WO2023115672A1 (en) * | 2021-12-24 | 2023-06-29 | 中公高科养护科技股份有限公司 | Asphalt modifier, and preparation method therefor and use thereof |
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